单项选择题

在下列工况下安装的阀门，从每批阀门中抽查10%，且不少于一个的应该是()。

A.输送有毒流体、可燃流体管道的阀门
B.输送设计压力大于1MPa流体管道的阀门
C.输送设计压力小于等于1MPa且设计温度低于—29℃或高于186℃非可燃流体、无毒流体管道的阀门
D.输送设计压力小于等于1MPa且设计温度为—29℃或——186℃非可燃流体、无毒流体管道的阀门
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